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https://issues.apache.org/jira/browse/BEAM-7951?focusedWorklogId=354590&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-354590
]
ASF GitHub Bot logged work on BEAM-7951:
----------------------------------------
Author: ASF GitHub Bot
Created on: 05/Dec/19 19:05
Start Date: 05/Dec/19 19:05
Worklog Time Spent: 10m
Work Description: lukecwik commented on pull request #9979: [BEAM-7951]
Allow runner to configure customization WindowedValue coder.
URL: https://github.com/apache/beam/pull/9979#discussion_r354477598
##########
File path:
sdks/java/core/src/main/java/org/apache/beam/sdk/util/WindowedValue.java
##########
@@ -693,4 +697,110 @@ public void registerByteSizeObserver(WindowedValue<T>
value, ElementByteSizeObse
return Collections.singletonList(valueCoder);
}
}
+
+ /**
+ * A parameterized Coder for {@code WindowedValue}.
+ *
+ * <p>A {@code ParamWindowedValueCoder} only encodes and decodes the value.
It drops timestamp and
+ * windows for encoding, and uses defaults(constant) timestamp, and windows
for decoding.
+ */
+ public static class ParamWindowedValueCoder<T> extends
FullWindowedValueCoder<T> {
+
+ private final Instant timestamp;
+ private final Collection<? extends BoundedWindow> windows;
+ private final PaneInfo pane;
+
+ public static <T> ParamWindowedValueCoder<T> of(
Review comment:
please add javadoc to the public static constructors.
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Issue Time Tracking
-------------------
Worklog Id: (was: 354590)
Time Spent: 4h 10m (was: 4h)
> Allow runner to configure customization WindowedValue coder such as
> ValueOnlyWindowedValueCoder
> -----------------------------------------------------------------------------------------------
>
> Key: BEAM-7951
> URL: https://issues.apache.org/jira/browse/BEAM-7951
> Project: Beam
> Issue Type: Sub-task
> Components: java-fn-execution
> Reporter: sunjincheng
> Assignee: sunjincheng
> Priority: Major
> Time Spent: 4h 10m
> Remaining Estimate: 0h
>
> The coder of WindowedValue cannot be configured and it’s always
> FullWindowedValueCoder. We don't need to serialize the timestamp, window and
> pane properties in Flink and so it will be better to make the coder
> configurable (i.e. allowing to use ValueOnlyWindowedValueCoder)
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